Performance and Emission Analysis of a Modern Small DI Diesel Engine Using Biodiesel-Diesel Blends and Additives with EGR
Journal Title: International Journal of engineering Research and Applications - Year 2018, Vol 8, Issue 6
Abstract
This study investigated the effects of EGR on performance and emission of a twin cylinder HATZ 2G40 lightduty engine at different speeds (1000 rpm, 2100 rpm and 3000 rpm) at different load conditions (20%, 50% and 80%) at each speed. Biodiesel-diesel blends with additives are considered the fuels in this study. The biodiesel was produced from pure canola oil using the transesterification process. Additives such as methanol (5% and 10% by volume) and diethyl ether (5% by volume) were mixed together to use in a diesel-biodiesel blends of B20 (20 vol.% biodiesel and 80% diesel), B50 (50 vol.% biodiesel and 50% diesel), and B100. Brake thermal efficiency (BTE) and brake-specific energy consumption (BSEC) were measured as the engine performance parameters, and those were increased when increasing the percentage of biodiesel and additives in the mixture. In emissions, carbon monoxide (CO), unburned hydrocarbon (HC), oxides of nitrogen (NOx) and smoke were measured. Increasing the percentage of biodiesel decreased HC and CO emissions and increased NOx, whereas increasing the methanol percentage increased HC and CO emission in the diethyl etherbiodiesel-diesel blend when compared with a diesel-biodiesel blend. This was still less than diesel, except for the B20 series, which showed a 20-22% decrease in NOx emission for methanol 10%, diethyl ether 5% in B20 (M10D5B20). However, the use of exhaust gas recirculation (EGR) shows a significant decrease in BSEC and increase in BTE. In terms of emissions, the use of EGR decreases smoke opacity and NOx emission but increases CO and HC emissions.
Authors and Affiliations
Zuber Arif Khan, Dr. Murari Mohon Roy
Keywords
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- EP ID EP394356
- DOI 10.9790/9622-0806023446.
- Views 120
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